Subject :NSO Class : Class 8
Subject :NSO Class : Class 3
Ans 5:
Class : Class 3
the answer seems incorrect. One can send an invitation through all of the available resources. However, if one wants to send invitation speedily, then the option of Speed Post would be more correct.
Ans 12:
Class : Class 4
the question framed incorrectly. It should have been sending wedding card at the earliest
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Subject :NSO Class : Class 7
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Subject :NSO Class : Class 6
Subhi, a class 6 student grouped together a few changes occurring around us as:
Group 1 : Blooming of flowers, breaking of glass, vaporisation of water, sawing of wood
Group 2 : Tides in the ocean, motion of a swing, landslides, occurrence of day and night
Group 3 : Rusting, germination of seeds, burning of fire crackers, growth of a child
Group 4 : Making a paper boat, blowing air into balloon, baking a roti, heating an iron rod
Select the odd one in each group and mention the property which makes it odd.
| Group 1 | Group 2 | Group 3 | Group 4 | |
|---|---|---|---|---|
| A | Blooming of flowers (Physical change) |
Tides in the ocean (Periodic change) |
Rusting (Chemical change) |
Making a paper boat (Physical change) |
| B | Breaking of glass (Irreversible change) |
Occurrence of day and night (Natural change) |
Germination of seeds (Irreversible change) |
Blowing air into balloon (Reversible change) |
| C | Sawing of wood (Physical change) |
Motion of a swing (Periodic change) |
Growth of a child (Irreversible change) |
Heating an iron rod (Chemical change) |
| D | Vaporisation of water (Reversible change) |
Landslides (Nonperiodic change) |
Burning of fire crackers (Fast change) |
Baking a roti (Chemical change) |
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Subject :NSO Class : Class 8
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Subject :NSO Class : Class 8
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Subject :NSO Class : Class 3
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Subject :NSO Class : Class 7
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Subject :NSO Class : Class 6
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Subject :NSO Class : Class 5